<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8" />
		<meta http-equiv="X-UA-Compatible" content="IE=edge" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
		<title>箭头函数</title>
	</head>
	<body>
		<script>
			// function fn(num1, num2) {
			// 	return num1 + num2;
			// }
			// console.log(fn(10, 20));

			const fn = (num1, num2) => num1 + num2;
			console.log(fn(10, 20));

			// function fun(v) {
			// 	return v;
			// }
			// console.log(fun(10));

			// const fun = (v) => {
			// 	return v;
			// };
			// console.log(fun(10));

			const fun = (v) => v;
			console.log(fun(10));
		</script>
	</body>
</html>
